METHOD FOR MONITORING AN AUTOMATION MEASURING DEVICE

摘要

The invention relates to a method for monitoring an automation measuring device (1), wherein the measuring device has a capacitive sensor (4), wherein the sensor (4) has at least one capacitor, and wherein the at least one capacitor is used to determine or monitor a process variable, characterized in that the loss resistance (RL) of the at least one capacitor is measured by determining the state of charge of the at least one capacitor (Cs0, Cs1) at a first time (T1) and at a subsequent second time (T2), and in that an item of information relating to a disruption in the functional capability of the measuring device (1) is obtained using a change in the state of charge between the first time (T1) and the second time (T2).